java.lang.IllegalArgumentException: maxThreadCount should be <= maxMergeCount (= 7)

GitHub | rayward | 5 months ago
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  1. 0

    index.merge.scheduler.max_thread_count is not validated correctly, can break indexing

    GitHub | 5 months ago | rayward
    java.lang.IllegalArgumentException: maxThreadCount should be <= maxMergeCount (= 7)
  2. 0

    Need to validate index.merge.scheduler.max_thread_count input?

    GitHub | 7 months ago | joshuar
    java.lang.IllegalArgumentException: maxThreadCount should be <= maxMergeCount (= 7)

    Root Cause Analysis

    1. java.lang.IllegalArgumentException

      maxThreadCount should be <= maxMergeCount (= 7)

      at org.apache.lucene.index.ConcurrentMergeScheduler.setMaxMergesAndThreads()
    2. Lucene
      ConcurrentMergeScheduler.setMaxMergesAndThreads
      1. org.apache.lucene.index.ConcurrentMergeScheduler.setMaxMergesAndThreads(ConcurrentMergeScheduler.java:154)
      1 frame
    3. ElasticSearch
      PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.run
      1. org.elasticsearch.index.engine.ElasticsearchConcurrentMergeScheduler.refreshConfig(ElasticsearchConcurrentMergeScheduler.java:176)
      2. org.elasticsearch.index.engine.InternalEngine.onSettingsChanged(InternalEngine.java:1268)
      3. org.elasticsearch.index.shard.IndexShard$ApplyRefreshSettings.onRefreshSettings(IndexShard.java:1325)
      4. org.elasticsearch.index.settings.IndexSettingsService.refreshSettings(IndexSettingsService.java:54)
      5. org.elasticsearch.indices.cluster.IndicesClusterStateService.applySettings(IndicesClusterStateService.java:341)
      6. org.elasticsearch.indices.cluster.IndicesClusterStateService.clusterChanged(IndicesClusterStateService.java:180)
      7. org.elasticsearch.cluster.service.InternalClusterService.runTasksForExecutor(InternalClusterService.java:610)
      8. org.elasticsearch.cluster.service.InternalClusterService$UpdateTask.run(InternalClusterService.java:772)
      9. org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.runAndClean(PrioritizedEsThreadPoolExecutor.java:231)
      10. org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.run(PrioritizedEsThreadPoolExecutor.java:194)
      10 frames
    4. Java RT
      Thread.run
      1. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      2. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      3. java.lang.Thread.run(Thread.java:745)
      3 frames